January Weather in Grachen, Switzerland

Last updated: August 27, 2025

January in Grachen, Switzerland, offers a captivating winter experience characterized by chilly temperatures that range from a maximum of 5°C (41°F) to a stark minimum of -27°C (-17°F). With an average temperature of -10°C (15°F), visitors can expect a brisk, frosty climate perfect for winter sports and cozy retreats. Precipitation is notable, with 125 mm (4.9 in) over 11 days, contributing to the enchanting snow-covered landscapes. The humidity level hovers at a high 92%, enhancing the magical allure of this picturesque alpine village. Whether you’re seeking adventure or relaxation, Grachen in January undoubtedly delivers a quintessential Swiss winter wonderland experience.

January Temperature in Grachen

In Grachen, Switzerland, January brings a true winter experience characterized by bitingly cold temperatures. The month showcases a stark range, with minimums plunging to -27°C (-17°F), which is among the lowest for the year. Average temperatures hover around -10°C (15°F), while highs struggle to reach just 5°C (41°F). This chilling pattern sets the stage for a gradual warming trend as winter progresses; February sees a slight increase with an average of -6°C (22°F), and by March, temperatures can rise to an average of -3°C (27°F). Despite this volatility, January remains a highlight for winter sports enthusiasts, promising snowy landscapes and frosty adventures amid the breathtaking alpine scenery.

January Weather in Grachen: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Grachen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grachen, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec142126344151555447382717
Data source: Temperature data for Grachen generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Grachen

In January, Grachen, Switzerland experiences a notable precipitation total of 125 mm (4.9 in) over approximately 11 days, setting a robust tone for the winter season. As winter deepens, the following months play out with varied but consistently significant rainfall, peaking in December with a substantial 170 mm (6.7 in), while the lighter precipitations of February and April suggest a brief lull in winter's grip. Overall, January stands out as a bridge month, echoing trends in both rain frequency and total moisture, with each successive month contributing to the picturesque Alpine landscape that draws visitors year-round.

January Precipitation Trends in Grachen

The chart displays monthly precipitation patterns in Grachen, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Grachen, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec125821098914913010811989148109170
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Grachen

In January, the picturesque town of Grachen, Switzerland, experiences its highest humidity of the year at an impressive 92%. This winter dampness sets the tone for the subsequent months, as humidity gradually decreases to 89% in February and further dips to 87% in March. As spring approaches, the trend continues, with April seeing 84% humidity and May dropping to 80%. However, the summer months bring a slight increase, with June and July hovering around 82% and 83%, respectively. By August, humidity levels settle back to 80%, before rising again in the autumn months, reaching 90% in October. The trend shows a notable seasonal variation, with winter and late autumn maintaining higher humidity levels, while spring and summer enjoy a brief respite before the dampness returns.

January Average Humidity in Grachen

This chart illustrates the average monthly humidity levels in Grachen, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Grachen is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Grachen

In January, Grachen sees a moderate UV Index of 3, indicating that sun exposure can be managed with some precautions. With a burn time of just 30 minutes, it’s a good idea to be mindful of direct sunlight, especially during outdoor activities. This trend of moderate exposure continues into February, where the UV Index slightly rises to 4, maintaining the same burn time. However, as we move into March, the intensity of UV radiation escalates significantly with a high UV Index of 7, reducing the safe burn time to 25 minutes. This upward trajectory continues through April and May, reaching a peak at 10 in May, where the category shifts to very high and the burn time shrinks to just 15 minutes. The intensity of UV radiation remains high throughout the summer months until August, when it begins to taper off. September and October revert back to a high UV Index, but the burn time increases again to 25 minutes. As the year closes, November and December end with a return to moderate and low categories respectively. For those planning activities in Grachen, understanding these seasonal trends is crucial for safe sun exposure. For more insights, visit Grachen UV Index.

Maximum UV Index Levels in Grachen for January

The chart shows the monthly maximum UV Index (UVI) for Grachen in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Grachen typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec347810111097632
Data source: Grachen January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Grachen

In January, Grachen, Switzerland, welcomes the year with 176 hours of sunshine, a gentle precursor to the brighter months ahead. As winter gives way to spring, the sunlight begins to increase, reaching 234 hours in February and surging to 303 hours by March. With each passing month, the sun's warm embrace deepens, ultimately peaking at 416 hours in the sun-drenched heights of July. The trend of increasing sunshine continues into August, albeit slightly tempered to 383 hours, before gracefully transitioning into a crisp autumn backdrop with 323 hours in September. As the year wanes, sunlight gradually recedes, closing out the year with 202 hours in December, demonstrating the beautiful cyclical dance of light throughout the seasons in this picturesque alpine village.

Monthly Sunshine Duration in Grachen: January Highlighted

The January sunshine duration represents the total number of hours Grachen experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec176h234h303h355h360h388h416h383h323h288h232h202h
Data source: Grachen January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Grachen During January

When considering the likelihood of sunny weather in January in Grachen, Switzerland, it's important to note that the chances are relatively low at only 19%. This sets the tone for the winter months, with February showing a significant improvement, reaching 37%. As spring approaches, the probabilities continue to climb, with March peaking at 42% before slightly tapering off in April and May. This trend suggests that while January may not offer much sunshine, the subsequent months bring a welcome increase in sunny days, making late winter and early spring a more favorable time for those seeking brighter skies.

Percentage of Sunny Days in January in Grachen

The chart illustrates the percentage of sunny days in Grachen throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Grachen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%37%42%40%30%24%31%37%25%38%28%37%
Data source: Grachen January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Grachen in January

In Grachen, Switzerland, January marks the beginning of a gradual increase in daylight, with the sun gracing the village for 9 hours each day. As winter yields to spring, February sees this duration extend to 10 hours, and by March, daylight stretches to 11 hours, offering a hint of the season's change. The warmth of spring brings even longer days, with daylight reaching 13 hours in April and peaking at 15 hours during the summer months of June and July. As summer fades into autumn, daylight begins to wane, dropping to 14 hours in August and then modestly decreasing to 12 hours in September. The cycle continues as October and November bring back shorter days with 10 hours and 9 hours respectively, culminating in December’s twilight of just 8 hours. This rhythmic ebb and flow of daylight not only highlights Grachen's seasonal transitions but also invites residents and visitors alike to savor each moment of sun.

Average Daylight Hours in Grachen for January

The chart illustrates the variation in daylight duration in Grachen throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 3m10h 20m11h 56m13h 34m14h 59m15h 42m15h 19m14h 4m12h 29m10h 51m9h 25m8h 39m
Data source: Grachen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Grachen

In Grachen, Switzerland, the winds of January usher in a gentle breeze with an average speed of 1.4 m/s (3 mph), setting the tone for a calm winter month. Interestingly, this consistent wind speed remains unchanged in February, as the region enjoys a mild atmosphere. As spring approaches, the winds start to soften slightly, with March and April both registering a subtle decrease to 1.1 m/s (3 mph). The trend of gentle breezes continues into May, only slightly increasing to 1.2 m/s (3 mph) before dipping again during the summer months of June and July, where the winds settle at a calm 1.0 m/s (2 mph). As autumn returns, October and November see a revival in wind speed, reaching 1.3 m/s (3 mph), before finally tapering off to a tranquil 1.2 m/s (3 mph) in November, echoing the peacefulness of the season. This rhythmic ebb and flow of wind speeds throughout the year paints a picture of a serene alpine climate, perfect for both relaxation and adventure.

Average January Wind Speed in Grachen

The chart displays monthly wind speed patterns in Grachen, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.4 m/s1.41.11.11.21.01.01.10.91.31.21.3
Data source: Grachen January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Grachen Compares to Other Months

Weather in Grachen varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Grachen, focusing on differences in temperature, rainfall, humidity, and UV levels.

In January, the weather is colder with average temperatures around -10°C (15°F) and minimum lows reaching -27°C (-17°F). The month experiences significant precipitation, totaling 125 mm (4.9 in), spread over 11 days, and a high humidity level of 92%. In contrast, February shows a slight warming trend, with average temperatures rising to -6°C (22°F) and maximum highs reaching 9°C (48°F). Precipitation decreases to 82 mm (3.2 in) over 12 days, and humidity remains high at 89%. For more details on February weather, check out Grachen weather in February.

In January, the weather is notably colder with average temperatures around -10°C (15°F) and a maximum of only 5°C (41°F), contributing to a very chilly atmosphere. This month experiences significant precipitation, with 125 mm (4.9 in) spread over 11 days, and high humidity levels at 92%. In contrast, March brings a slight warming trend, with average temperatures rising to -3°C (27°F) and daytime highs reaching 12°C (53°F). While precipitation remains quite steady at 109 mm (4.3 in) over 15 days, the lower humidity level of 87% makes March feel a bit more pleasant. For more details on this month's conditions, you can check Grachen weather in March.

January and April exhibit notable differences in weather conditions. In January, temperatures can plummet to a minimum of -27°C (-17°F), with an average of -10°C (15°F) and a maximum of only 5°C (41°F). The month is quite moist, recording 125 mm (4.9 in) of precipitation over 11 days, accompanied by a high humidity level of 92%. In contrast, April brings a gradual warming trend, with temperatures ranging from a minimum of -17°C (2°F) to an average of 1°C (34°F) and peaking at 15°C (59°F). While precipitation decreases to 89 mm (3.5 in) over the same number of rainy days, humidity also drops to 84%. For more details about April weather, you can check Grachen weather in April.

January and May showcase a striking contrast in weather conditions. In January, temperatures plunge to a minimum of -27°C (-17°F), with an average of -10°C (15°F) and a maximum of just 5°C (41°F). The month is characterized by high humidity at 92%, along with significant precipitation totaling 125 mm over 11 days. In contrast, May brings a more temperate climate, with minimum temperatures around -13°C (9°F) and an average of 5°C (41°F), peaking at a pleasant 20°C (67°F). While May sees slightly higher precipitation at 149 mm over 20 days, the humidity drops to 80%, providing a more inviting atmosphere. For those interested in the specifics of May weather, you can check Grachen weather in May.

In January, the weather is characterized by extremely cold temperatures, with lows plummeting to -27°C (-17°F) and an average of -10°C (15°F), making it one of the coldest months of the year. The precipitation during this time totals 125 mm (4.9 in) over 11 days, and the high humidity of 92% can make the chill feel even more intense.

In contrast, June offers a much milder climate with temperatures ranging from a minimum of -3°C (26°F) to a pleasant average of 11°C (51°F), peaking at 26°C (78°F). The month sees a slight increase in precipitation at 130 mm (5.1 in), but it falls over more days—17 total—accompanied by a lower humidity of 82%. For a more detailed look at weather patterns during June, you can explore Grachen weather in June.

In January, the weather is characterized by frigid temperatures, with an average of -10°C (15°F) and nighttime lows plunging to as low as -27°C (-17°F). The month experiences significant precipitation, totaling 125 mm (4.9 in) over approximately 11 days, coupled with high humidity levels at 92%. In stark contrast, July offers a much milder climate with temperatures ranging from a minimum of 0°C (33°F) to a pleasant average of 13°C (55°F) and highs reaching up to 25°C (76°F). July sees slightly lower precipitation at 108 mm (4.2 in) spread over 16 days, along with a reduction in humidity to 83%. For a closer look at July weather in the region, check out Grachen weather in July.

January and August present stark contrasts in weather. In January, temperatures drop significantly, ranging from a chilling minimum of -27°C (-17°F) to an average of -10°C (15°F) and peaking at just 5°C (41°F). The month is marked by high humidity at 92% and considerable precipitation, totaling 125 mm (4.9 in) over 11 days. In contrast, August offers much milder conditions, with temperatures starting from a minimum of 0°C (33°F), averaging 12°C (54°F), and reaching a pleasant maximum of 24°C (76°F). Although it receives slightly less precipitation at 119 mm (4.7 in) across 16 days, the humidity is lower at 80%. For more insights into the weather during this month, you can refer to Grachen weather in August.

In January, the weather is characterized by frigid temperatures, with lows plummeting to -27°C (-17°F) and an average temperature of -10°C (15°F), reaching a maximum of only 5°C (41°F). This month also sees significant precipitation, totaling 125 mm (4.9 in) over approximately 11 days, accompanied by high humidity at 92%.

In contrast, September offers a much milder climate, with temperatures ranging from a minimum of -6°C (22°F) to an average of 8°C (47°F) and a maximum of 21°C (70°F). Precipitation is lower, at 89 mm (3.5 in), spread over 13 days, and humidity is slightly reduced at 83%.

For more details, you can explore Grachen weather in September.

In January, the weather is much colder, with temperatures ranging from a frigid -27°C (-17°F) as a minimum to a maximum of just 5°C (41°F), averaging around -10°C (15°F). The month experiences significant precipitation of 125 mm (4.9 in) over 11 days, accompanied by high humidity at 92%. In contrast, October sees milder conditions, with temperatures fluctuating between -8°C (18°F) and 16°C (61°F), averaging 4°C (39°F). Despite slightly higher precipitation at 148 mm (5.8 in) over the same number of rainy days, the humidity is marginally lower at 90%. For a closer look at weather specifics, you can visit Grachen weather in October.

In January, temperatures can plummet to a minimum of -27°C (-17°F) with an average of -10°C (15°F) and a maximum of just 5°C (41°F), making it one of the coldest months of the year. In contrast, November experiences slightly milder temperatures, with a minimum of -23°C (-10°F), an average of -3°C (27°F), and a maximum of 12°C (55°F). While both months see substantial precipitation, January has around 125 mm (4.9 in) over 11 days, compared to November's 109 mm (4.3 in) over 15 days. Interestingly, the humidity levels are high in both months, with January reaching 92% and November slightly lower at 88%. For more insights on November weather, visit Grachen weather in November.

January and December exhibit strikingly similar winter conditions, yet there are some notable differences. In December, temperatures reach a minimum of -28°C (-18°F) and average around -8°C (17°F), while January sees slightly milder conditions with a minimum of -27°C (-17°F) and an average of -10°C (15°F). Both months have a maximum temperature of 5°C (41°F). December experiences more precipitation, totaling 170 mm (6.7 in) over 17 days, compared to January's 125 mm (4.9 in) across 11 days. Interestingly, January has a marginally higher humidity level at 92%, compared to December's 90%. For those interested in a detailed look at December weather patterns, you can check Grachen weather in December.

Compare Grachen's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Grachen

In January, Grachen experiences a stark contrast to the milder months, with temperatures plummeting and the landscape often blanketed in snow. The average temperature dips to a brisk -10°C (15°F), and the chance of snowy days increases, leading to a significant 125 mm of precipitation over approximately 11 days. This high humidity level of 92% can make the cold feel even more penetrating, distinguishing January as one of the coldest months of the year. For those who revel in winter sports or the serene beauty of snow-covered slopes, the January weather in Grachen presents a uniquely enchanting experience. For more detailed insights, explore Grachen Climate.